#!/bin/bash

# Copyright (c) 2022 Huawei Technologies Co.,Ltd.
#
# openGauss is licensed under Mulan PSL v2.
# You can use this software according to the terms and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#
#          http://license.coscl.org.cn/MulanPSL2
#
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
# See the Mulan PSL v2 for more details.

echo ""
echo "Welcome to DBMind Installer"
echo ""

homedir=$(getent passwd "$USER" | cut -d: -f6)
inst=${homedir}/openGauss-DBMind

echo "DBMind will now be installed into this location:"
echo "$inst"
echo "
  - Press ENTER to confirm the location
  - Press CTRL-C to abort the installation
  - Or specify a different location below
"

read -e -p ">>>" input

if [[ "$input" != "" ]]; then
    inst=$input
fi

echo "PREFIX=$inst"
echo "Unpacking payload ..."
ARCHIVE=`awk '/^__ARCHIVE_BELOW__/ {print NR + 1; exit 0; }' $0`
mkdir -p $inst
tail -n+$ARCHIVE $0 | tar xz -C $inst

if [[ $? -ne 0 ]]; then
    echo "Failed to decompress."
    exit 1
fi

echo "Do you wish the installer to append the path $inst into the enviroment variable? [yes|no]"
read -e -p ">>>" input
while [[ "$input" != "yes" && "$input" != "no" ]]; do
    read -e -p ">>>" input
done

case "$input" in
    "yes") echo "export PATH=${inst}:"'$PATH' >> $homedir/.bashrc
    ;;
    "no") 
    ;;
    *) echo "Wrong input."
esac


echo "Installed successfully."
if [[ ! -d "${inst}/python" ]]; then
echo \
+"==================================================
+If Python is not installed in your system,
+ we suggest you download *miniconda* from
+ the following website:
+
+   - official: https://docs.conda.io/en/latest/miniconda.html#linux-installers
+   - mirror:   https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda
+
+And then, execute the following command to install
+ it into the DBMind installation directory:
+
+   ./Miniconda3-xxx.sh -b -p $inst/python
+
+===================================================
+"
fi
exit 0

__ARCHIVE_BELOW__
